Family name Whitelock (Whitelock 
) , globally, is quite a rare surname. The family name Whitelock is characteristic of Lesotho, where it is quite a rare surname, Jamaica, and the United Kingdom. In absolute terms, it is the most numerous in the United Kingdom, the United States, and Australia.
| VARIANT | COUNTRY |
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| Whitelock | United Kingdom, Lesotho, Australia, United States, Canada |
| william whitelock English barrister and Member of Parliament (1637-1717) (b. 1636) |
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| william whitelock (1673-1709) (b. 1673) |
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| ann whitelock (1700-1771) (b. 1700) |
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| martha whitelock (died 1829) (b. 1786) |
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| carl otto whitelock (b. 1789) |
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| louise clarkson whitelock writer, US (b. 1851) |
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| edmund ernest whitelock (born 1873) (b. 1873) |
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| william wallace whitelock (b. 1869) |
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| dorothy whitelock English historian, GB (b. 1901) |
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| loran whitelock American botanist (1930-2014), US (b. 1930) |
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kayla whitelock New Zealand field hockey player, NZ (b. 1985) |
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george whitelock New Zealand rugby union player, NZ (b. 1986) |
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adam whitelock New Zealand rugby union footballer, NZ (b. 1987) |
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sam whitelock New Zealand rugby union footballer & researcher, NZ (b. 1988) |
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| patricia whitelock South African astrophysicist, ZA (b. 1951) |
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